SG182541A1 - Process for decarburization of a silicon melt - Google Patents
Process for decarburization of a silicon melt Download PDFInfo
- Publication number
- SG182541A1 SG182541A1 SG2012052288A SG2012052288A SG182541A1 SG 182541 A1 SG182541 A1 SG 182541A1 SG 2012052288 A SG2012052288 A SG 2012052288A SG 2012052288 A SG2012052288 A SG 2012052288A SG 182541 A1 SG182541 A1 SG 182541A1
- Authority
- SG
- Singapore
- Prior art keywords
- silicon
- melt
- ppm
- process according
- addition
- Prior art date
Links
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 83
- 239000010703 silicon Substances 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000005261 decarburization Methods 0.000 title claims description 11
- 239000004065 semiconductor Substances 0.000 claims abstract description 8
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims description 111
- 229910052799 carbon Inorganic materials 0.000 claims description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 43
- 239000000155 melt Substances 0.000 claims description 29
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 5
- 239000001099 ammonium carbonate Substances 0.000 claims description 5
- 235000012501 ammonium carbonate Nutrition 0.000 claims description 5
- 229910052756 noble gas Inorganic materials 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000002245 particle Substances 0.000 description 22
- 239000007788 liquid Substances 0.000 description 7
- 239000000523 sample Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000002525 ultrasonication Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- AWXLLPFZAKTUCQ-UHFFFAOYSA-N [Sn].[W] Chemical compound [Sn].[W] AWXLLPFZAKTUCQ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- CMBZEFASPGWDEN-UHFFFAOYSA-N argon;hydrate Chemical compound O.[Ar] CMBZEFASPGWDEN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001941 electron spectroscopy Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 hydrogen Chemical compound 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000011022 operating instruction Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000003921 particle size analysis Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910021422 solar-grade silicon Inorganic materials 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
- C01B33/037—Purification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
- C01B33/021—Preparation
- C01B33/023—Preparation by reduction of silica or free silica-containing material
- C01B33/025—Preparation by reduction of silica or free silica-containing material with carbon or a solid carbonaceous material, i.e. carbo-thermal process
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Photovoltaic Devices (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010001094A DE102010001094A1 (de) | 2010-01-21 | 2010-01-21 | Verfahren zur Entkohlung einer Siliciumschmelze |
| PCT/EP2010/070756 WO2011088953A1 (en) | 2010-01-21 | 2010-12-27 | Process for decarburization of a silicon melt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG182541A1 true SG182541A1 (en) | 2012-08-30 |
Family
ID=43769060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG2012052288A SG182541A1 (en) | 2010-01-21 | 2010-12-27 | Process for decarburization of a silicon melt |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US20120302043A1 (de) |
| EP (1) | EP2526053A1 (de) |
| JP (1) | JP2013517212A (de) |
| KR (1) | KR20120127423A (de) |
| CN (1) | CN102712483A (de) |
| AU (1) | AU2010343751A1 (de) |
| BR (1) | BR112012017579A2 (de) |
| CA (1) | CA2787522A1 (de) |
| DE (1) | DE102010001094A1 (de) |
| EA (1) | EA201201017A1 (de) |
| SG (1) | SG182541A1 (de) |
| TW (1) | TW201141785A (de) |
| WO (1) | WO2011088953A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT517813A1 (de) * | 2015-09-08 | 2017-04-15 | Holcim Technology Ltd | Verfahren und Vorrichtung zum Reduzieren der NOx-Emissionen eines Drehrohrofens |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4247528A (en) | 1979-04-11 | 1981-01-27 | Dow Corning Corporation | Method for producing solar-cell-grade silicon |
| US4457902A (en) * | 1980-10-24 | 1984-07-03 | Watson Keith R | High efficiency hydrocarbon reduction of silica |
| DE3403131A1 (de) | 1984-01-30 | 1985-08-01 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum reinigen von im lichtbogenofen erzeugtem silicium |
| JPS61275124A (ja) * | 1985-05-29 | 1986-12-05 | Kawasaki Steel Corp | 金属珪素の製造方法ならびにその装置 |
| JPS6379717A (ja) | 1986-09-24 | 1988-04-09 | Kawasaki Steel Corp | 金属珪素の製造方法およびその装置 |
| JP2538044B2 (ja) | 1989-04-07 | 1996-09-25 | 川崎製鉄株式会社 | 金属シリコン脱炭用ランスおよび脱炭方法 |
| JP2856839B2 (ja) | 1990-05-11 | 1999-02-10 | 川崎製鉄株式会社 | シリコンの精製方法 |
| JPH04231316A (ja) | 1990-12-27 | 1992-08-20 | Kawasaki Steel Corp | 金属シリコンの脱炭方法 |
| JPH06345416A (ja) | 1993-06-02 | 1994-12-20 | Kawasaki Steel Corp | 電子ビーム溶解によるシリコンの精錬方法 |
| DE19927604A1 (de) * | 1999-06-17 | 2000-12-21 | Bayer Ag | Silicium mit strukturierter Sauerstoffdotierung, dessen Herstellung und Verwendung |
| JP4231316B2 (ja) | 2003-03-25 | 2009-02-25 | 京セラ株式会社 | セラミック配線基板の製造方法 |
| US7682585B2 (en) * | 2006-04-25 | 2010-03-23 | The Arizona Board Of Regents On Behalf Of The University Of Arizona | Silicon refining process |
| JP2009120460A (ja) | 2007-11-19 | 2009-06-04 | Sharp Corp | シリコンの精製方法 |
-
2010
- 2010-01-21 DE DE102010001094A patent/DE102010001094A1/de not_active Withdrawn
- 2010-12-27 CN CN2010800619331A patent/CN102712483A/zh active Pending
- 2010-12-27 EP EP10798119A patent/EP2526053A1/de not_active Withdrawn
- 2010-12-27 AU AU2010343751A patent/AU2010343751A1/en not_active Abandoned
- 2010-12-27 JP JP2012549275A patent/JP2013517212A/ja active Pending
- 2010-12-27 EA EA201201017A patent/EA201201017A1/ru unknown
- 2010-12-27 SG SG2012052288A patent/SG182541A1/en unknown
- 2010-12-27 US US13/574,335 patent/US20120302043A1/en not_active Abandoned
- 2010-12-27 KR KR1020127019186A patent/KR20120127423A/ko not_active Application Discontinuation
- 2010-12-27 BR BR112012017579A patent/BR112012017579A2/pt not_active IP Right Cessation
- 2010-12-27 CA CA2787522A patent/CA2787522A1/en not_active Abandoned
- 2010-12-27 WO PCT/EP2010/070756 patent/WO2011088953A1/en active Application Filing
-
2011
- 2011-01-18 TW TW100101792A patent/TW201141785A/zh unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010001094A1 (de) | 2011-07-28 |
| KR20120127423A (ko) | 2012-11-21 |
| US20120302043A1 (en) | 2012-11-29 |
| WO2011088953A1 (en) | 2011-07-28 |
| EP2526053A1 (de) | 2012-11-28 |
| JP2013517212A (ja) | 2013-05-16 |
| TW201141785A (en) | 2011-12-01 |
| CA2787522A1 (en) | 2011-07-28 |
| CN102712483A (zh) | 2012-10-03 |
| AU2010343751A1 (en) | 2012-07-05 |
| EA201201017A1 (ru) | 2013-02-28 |
| BR112012017579A2 (pt) | 2016-08-16 |
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